When I first started seeing coolers like this a few years ago I sorta laughed and thought that it was just people being paranoid, but I must admit that recently I've seen a few select brands of laptops (especially "cheaper" laptops) that really do have major heat issues, and the cooling of the CPU is really not all that great
I had a Toshiba Satellite A100 for just over a year, and it truly had heat issues, if I tried to turn the fans down at all, it locked up and crashed, even with the fans running full out it would overhead, especially if you tried to play games on it for over an hour or two.
I really think a product like this will extend the life of your laptop, and the price of it is definitely worth it, for 50 bucks you can really purchase peace of mind, especially if your thinking of folding 24/7 for team BCC with your laptop (hint, hint)